If I had to prioritize what is most important for you to address is your cervical spine (get updated cervical MRI and ask for an urgent appointment with a good spine surgeon who will listen to all of your symptoms). You may need surgery to prevent permanent damage/injury. Then you can follow up with the neurologist and gastroenterologist for testing/treatment/monitoring. Addressing your spinal cord and cervical issue is a 911 that cannot wait longer than March! When I met with my new spine doctor, it took less than 1 month from the first appointment to surgery.